Alkali‐Ion Batteries by Carbon Encapsulation of Liquid Metal Anode

Huang, Chenghao; Guo, Baiyu; Wang, Xiaodong; Cao, Qingping; Zhang, Dongxian; Huang, Jianyu; Jiang, Jian‐Zhong

doi:10.1002/adma.202309732

Cited by 4 publications

(1 citation statement)

References 41 publications

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“…Although the composite anodes own enhanced mechanical stability and reduced charge/discharge polarization, extending the life‐cycle of Li anodes in LABs is still a great challenge because of their high (electro)chemical reactivity. To resolve this problem, lithium‐alloying composites with lower reactivity, such as Li x Sn, [ 164 ] LiAl x , [ 144 ] Li x Si, [ 165 ] and GaIn liquid metal anode [ 166 ] were exploited to replace Li metal. As a typical example, Zhou et al developed a long‐life Li‐ion O 2 battery based on commercial silicon particles for the first time.…”

Section: Rational Design Of Anode Structure/compositionmentioning

confidence: 99%

Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Ge,

Hu,

et al. 2024

Advanced Materials

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Alkali metal–air batteries (AMABs) promise ultrahigh gravimetric energy densities, while the inherent poor cycle stability hinders their practical application. To address this challenge, most previous efforts were devoted to advancing the air cathodes with high electrocatalytic activity. Recent studies have underlined the solid–liquid–gas triple‐phase interface around the anode can play far more significant roles than previously acknowledged by the scientific community. Besides the bottlenecks of uncontrollable dendrite growth and gas evolution in conventional alkali metal batteries, the corrosive atmospheric gases, intermediate oxygen species, and redox mediators in AMABs cause more severe anode corrosion and structural collapse, posing greater challenges to the stabilization of the anode triple‐phase interface. This work aims to provide a timely perspective on the anode interface engineering for durable AMABs. Taking the Li–air battery as a typical example, we have a critical review of the latest developed anode stabilization strategies, including formulating novel electrolytes to build protective interphases and alleviate corrosive attacks, fabricating advanced anodes to improve their anti‐corrosion capability, and designing functional separator to shield the corrosive species. Finally, we highlight the remaining scientific and technical issues from the prospects of anode interface engineering, particularly materials system engineering, for the practical use of AMABs. This article is protected by copyright. All rights reserved

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Section: Rational Design Of Anode Structure/compositionmentioning

confidence: 99%

Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Ge,

Hu,

et al. 2024

Advanced Materials

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Directly Printable, Non‐Smearable and Stretchable Conductive Ink Enabled by Liquid Metal Microparticles Interstitially Engineered in Highly Entangled Elastomeric Matrix

Singh,

Bhuyan,

Jeong

et al. 2024

Adv Funct Materials

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Liquid metal or liquid metal microparticles (LMP) based conductive inks, though promising for fabrication of circuits for use in soft and stretchable electronics, are constrained by a few drawbacks such as need for encapsulation, need for sintering to induce conductivity, and smearing. To address these issues, herein, a stretchable conductive composite ink is developed by combining LMPs with carbon black (CB) in highly entangled polysiloxane elastomer. LMP‐dispersed elastomer lacks conductivity because of its non‐percolated network, however, the CB can interconnect LMPs to act as a bridge, thereby imparting conductivity to the elastomer. Due to presence of fluidic LMPs, the LMPs‐dispersed elastomer lies in soft regime with initial conductivity of 5.6 S m−1, aided by the presence of CB in the interstitial spaces between the LMPs. The highly entangled molecular network of the encapsulating elastomer endows the resulting composite with high stretchability (≈286%) and softness (0.648 MPa) and its long pot life enables rheological modulation of the ink to achieve pressure‐driven direct printed non‐smearing traces. The LMPs‐based conductive ink developed in this work is expected to be further utilized in the fabrication of soft robotics and electronic skin and integrated into electronic modules by facile direct 3D printing.

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Building Stable Anodes for High‐Rate Na‐Metal Batteries

Wang,

Lu,

et al. 2024

Advanced Materials

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Due to the low‐cost and high energy density, sodium metal batteries (SMBs) have attracted growing interests, with great potential to power future electric vehicles (EVs) and mobile electronics, which require the rapid charge/discharge capability. However, the development of high‐rate SMBs has been impeded by the sluggish Na+ ion kinetics, particularly at the sodium metal anode (SMA). The high‐rate operation severely threatens the SMA stability, due to the unstable solid‐electrolyte interface (SEI), the Na dendrite growth, and large volume changes during Na plating‐stripping cycles, leading to rapid electrochemical performance degradations. In this paper, we survey key challenges faced by high‐rate SMAs, and we highlight representative stabilization strategies, including the general modification of SMB components (including the host, Na metal surface, electrolyte, separator, and cathode), and emerging solutions with the development of solid‐state SMBs and liquid metal anodes; we elaborate the working principle, performance, and application of these strategies, to reduce the Na nucleation energy barriers and promote Na+ ion transfer kinetics for stable high‐rate Na metal anodes. This review will inspire further efforts to stabilize SMAs and other metal (e.g., Li, K, Mg, Zn) anodes, promoting high‐rate applications of high‐energy metal batteries towards a more sustainable society.This article is protected by copyright. All rights reserved

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Alkali‐Ion Batteries by Carbon Encapsulation of Liquid Metal Anode

Cited by 4 publications

References 41 publications

Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Engineering Triple‐Phase Interfaces around the Anode toward Practical Alkali Metal–Air Batteries

Directly Printable, Non‐Smearable and Stretchable Conductive Ink Enabled by Liquid Metal Microparticles Interstitially Engineered in Highly Entangled Elastomeric Matrix

Building Stable Anodes for High‐Rate Na‐Metal Batteries

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